<template>
  <div class="login-container">
    <div class="login-box">
      <!-- //^头像 -->
      <div class="avatar_box">
        <img src="@/assets/heima.png" alt="">
      </div>
      <!-- //^表单区域 -->
      <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
        <!-- //^账号 -->
        <el-form-item prop="username">
          <span class="svg-container">
            <svg-icon icon-class="user" />
          </span>
          <el-input
            ref="username"
            v-model="loginForm.username"
            placeholder="请输入用户名"
            name="username"
            type="text"
            tabindex="1"
            auto-complete="on"
          />
        </el-form-item>
        <!-- //^密码 -->
        <el-form-item prop="password">
          <span class="svg-container">
            <svg-icon icon-class="password" />
          </span>
          <el-input
            :key="passwordType"
            ref="password"
            v-model="loginForm.password"
            :type="passwordType"
            placeholder="请输入密码"
            name="password"
            tabindex="2"
            auto-complete="on"
            @keyup.enter.native="handleLogin"
          />
          <span class="show-pwd" @click="showPwd">
            <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
          </span>
        </el-form-item>
        <!--//^按钮区-->
        <el-form-item class="btns">
          <el-button type="primary" @click="handleLogin">登录</el-button>
          <el-button type="info" @click="resetForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(async valid => {
        // 如果valid为false,则直接return
        if (!valid) return
        try {
          // 如果valid为true,则发起请求
          // console.log('发起请求')
          await this.$store.dispatch('user/login', this.loginForm)
          this.$router.push('/')
          this.$message.success('登录成功')
        } catch (err) {
          console.log(err)
        }
      })
    },
    // 重置按钮
    resetForm() {
      this.$refs.loginForm.resetFields()
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #606266;
$cursor: black;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  background-color: #2b4b6b;
  .el-input {
    display: inline-block;
    height: 30px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      // padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 40px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    // border: 1px solid rgba(255, 255, 255, 0.1);
    // background: rgba(0, 0, 0, 0.1);
    border: 1px solid #ccc;
    border-radius: 5px;
    line-height: 40px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2b4b6b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-box {
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }

  // ^头像
  .avatar_box {
    width: 152px;
    height: 152px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }

  // #表单
  .login-form {
    position: absolute;
    bottom: 0;
    width: 100%;
    // max-width: 100%;
    // padding: 160px 35px 0;
    padding: 0 20px;
    margin: 0 auto;
    overflow: hidden;

    .btns {
      border: 0;
      display: flex;
      justify-content: flex-end;
    }
  }

  // .tips {
  //   font-size: 14px;
  //   color: #fff;
  //   // margin-bottom: 10px;

  //   span {
  //     &:first-of-type {
  //       margin-right: 16px;
  //     }
  //   }
  // }

  // .login-container {
  //   .el-form-item {
  //     background-color: #fff;
  //   }
  // }

  .svg-container {
    padding: 0 5px 0 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  // .title-container {
  //   position: relative;

  //   .title {
  //     font-size: 26px;
  //     color: $light_gray;
  //     margin: 0px auto 40px auto;
  //     text-align: center;
  //     font-weight: bold;
  //   }
  // }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 14px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
